A. Check the sorting settings in the app. Go to the settings menu and look for sorting options. Ensure that 'Sort by Name' is selected. If it is already selected, try toggling it off and on again to refresh the sorting mechanism.

B. If the issue persists, try restarting the app. Close the app completely by swiping it away from the app switcher, then reopen it and check if the sorting by file name is functioning correctly.